FLIGHT FINDINGSAVIATION OCCURRENCE MAP
Back to map

LAX92FA043 · Cessna 172M

10 Nov 1991 · CARMEL VALLEY, CA, United States

Cessna 172M · Accident en route

From Watsonville Municipal Airport (WVI) to 062 · CARMEL VALLEY, CA

Report a problem

Event

NTSB case
LAX92FA043
Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
Accident
InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
Completed
API-reported fatalities
3 · all aircraft and ground
Ground fatalities
0
OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
General aviation
WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
Visual Meteorological Cond

Cessna 172M

Aircraft type
Cessna 172
Category
Airplane
RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
N80274
Operator
William T. Cleverdon, III · private individual
Onboard fatalities
Unknown
Route
From Watsonville Municipal Airport (WVI), Watsonville, CATo 062 · CARMEL VALLEY, CA
Aircraft age
Not recorded
Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
Part 91: General Aviation
Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
En route · cruise
First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
Miscellaneous/other
DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
Destroyed

Cause areas

  • Pilot in command › Proper altitude, not maintained
  • Pilot in command › Remedial action, delayed
  • Pilot in command › VFR procedures, improper

Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.

NTSB narrative

ON A CLR DAY WITH 15 MI VIS, THE PLT FLEW TO THE CARMEL VALLEY ARPT. WITNESSES SAID HE DSCNDD TO BTN 200' & 300' AGL (650' & 750' MSL), THEN FLEW PAST THE ARPT; INITIALLY THE GND TRACK WAS PARALLEL, BUT ABT 570 FT SOUTH OF RWY 29. WITNESSES SAID THE ACFT WAS FLYING SLOWLY; AFTER TRAVELING ABT 8/10 MI PAST THE ARPT, THE ACFT TURNED RGT & FLEW ABT 6/10 MI, HDG TWD THE RISING TRRN OF A BOX CANYON. JUST BFR IMPACT, THE ACFT BGN A LEFT TURN & COLLIDED WITH 40 DEG UPSLOPING TRRN AT ABT 850' MSL. THE PILOT HAD FLOWN THE ACFT TO THE SAME ARPT 7 WKS EARLIER. A PILOT EXAMINER RPRTD THE ARPT WAS CLEARLY VISIBLE FM THE AIR & WAS NOT DIFFICULT TO LOCATE, ESPECIALLY AFTER HAVING ONCE BEEN THERE. NO PREIMPACT MECHANICAL MALFUNCTION WAS FOUND WITH THE AIRFRAME OR ENG.

Probable cause

THE PILOT'S FAILURE TO MAINTAIN A SAFE ALTITUDE ABOVE THE GROUND DURING AN INTENTIONAL LOW ALTITUDE FLIGHT IN MOUNTAINOUS TERRAIN. CONTRIBUTING FACTORS RELATED TO THE PILOT BECOMING DISTRACTED WHILE FLYING OVER THE GROUND AND TO HIS FAILURE TO INITIATE A CLIMB OR TAKE OTHER CORRECTIVE ACTION BY ALTERING HIS COURSE IN A TIMELY MANNER TO AVOID COLLIDING WITH THE MOUNTAIN.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record LAX92FA043
Event ID
20001212X18459
Case number
LAX92FA043
Dataset
historical-pre2008
Source SHA-256
89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Source notes (4)
  • Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
  • Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
  • The date is the local date, which is the same as the UTC date the NTSB stores.
  • API snapshot SHA-256: 8c0be05c54aed7f46971742f90dfbb56ccb56daa5e8077711d071305a52ca0b0; retrieved 2026-09-21T01:28:42.038Z.